fzus63 kmqt 270811
glfls 
expires:202404271615;;452689

open lake forecast for lake superior
national weather service marquette mi
411 am edt sat apr 27 2024

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...low pressure of 29.5 inches over southwest minnesota 
will weaken to 29.6 inches as it tracks northeast, crossing western 
lake superior today and exiting northern lake superior by evening. 
during tonight and sunday, 30.4 inch high pressure will build over 
northern ontario as a 29.6 inch low pressure slowly lifts northeast 
across the central plains. this low will continue to track 
northeast, crossing western lake superior late in the day on monday 
at 29.7 inches. as the low moves over northern ontario monday night, 
a weak 29.9 inch ridge will shift east across the mississippi 
valley. on tuesday, the ridge will move toward the appalachians as 
the next low pressure of 29.6 inches tracks from the dakotas to 
northern minnesota. this low will pass just north of lake superior 
on wednesday. in its wake, a 29.9 inch ridge will shift east to the 
western great lakes by wednesday evening. 


lsz162-271615-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
411 am edt sat apr 27 2024 /311 am cdt sat apr 27 2024/

...gale watch in effect from sunday morning through monday
morning...

.early this morning...northeast winds 15 to 25 knots. rain
showers and isolated thunderstorms. waves 3 to 6 feet
occasionally to 8 feet. 
.today...northeast winds 15 to 25 knots diminishing to 5 to
15 knots in the afternoon, then becoming west 10 to 20 knots
late. rain showers and isolated thunderstorms through early
afternoon, then isolated rain showers by mid afternoon. waves
subsiding to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots veering north after
midnight, then becoming northeast 15 to 25 knots late. a slight
chance of rain showers through midnight. waves subsiding to calm
to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northeast gales to 35 knots becoming east gales to
40 knots in the afternoon, then backing northeast late. a chance
of rain showers. waves building to 10 to 14 feet occasionally to
18 feet. 
.sunday night...east gales to 40 knots. rain showers. waves 10 to
14 feet occasionally to 18 feet. 
.monday...northeast gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. rain showers likely. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.monday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots backing east. rain
showers likely. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 
.wednesday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 270811
glfls 
expires:202404271615;;452690

open lake forecast for lake superior
national weather service marquette mi
411 am edt sat apr 27 2024

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...low pressure of 29.5 inches over southwest minnesota 
will weaken to 29.6 inches as it tracks northeast, crossing western 
lake superior today and exiting northern lake superior by evening. 
during tonight and sunday, 30.4 inch high pressure will build over 
northern ontario as a 29.6 inch low pressure slowly lifts northeast 
across the central plains. this low will continue to track 
northeast, crossing western lake superior late in the day on monday 
at 29.7 inches. as the low moves over northern ontario monday night, 
a weak 29.9 inch ridge will shift east across the mississippi 
valley. on tuesday, the ridge will move toward the appalachians as 
the next low pressure of 29.6 inches tracks from the dakotas to 
northern minnesota. this low will pass just north of lake superior 
on wednesday. in its wake, a 29.9 inch ridge will shift east to the 
western great lakes by wednesday evening. 


lsz263-271615-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
411 am edt sat apr 27 2024

...gale watch in effect from sunday afternoon through monday
afternoon...

.early this morning...east winds 10 to 20 knots. rain showers and
isolated thunderstorms. waves 4 to 8 feet occasionally to
10 feet subsiding to 4 to 7 feet occasionally to 9 feet. 
.today...east winds 5 to 15 knots becoming north 10 to 20 knots
in the afternoon, then backing west late. scattered rain showers
and isolated thunderstorms. waves subsiding to 2 to 4 feet. 
.tonight...northwest winds 15 to 25 knots veering northeast late.
a slight chance of rain showers through midnight. waves subsiding
to 1 to 3 feet, then building to 3 to 6 feet occasionally to
8 feet. 
.sunday...northeast winds 15 to 25 knots increasing to gales to
35 knots. a chance of rain showers by mid afternoon. waves
building to 8 to 11 feet occasionally to 14 feet. 
.sunday night...east gales to 40 knots. rain showers. waves 7 to 
10 feet occasionally to 13 feet building to 10 to 14 feet 
occasionally to 18 feet. 
.monday...east gales to 35 knots diminishing to 20 to 30 knots by
mid afternoon. rain showers likely. waves subsiding to 6 to
9 feet occasionally to 11 feet. 
.monday night...southwest winds 10 to 20 knots. waves subsiding
to 2 to 4 feet. 
.tuesday...west winds 5 to 15 knots becoming southeast 10 to
20 knots. rain showers likely. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$